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| English | Spanish |
| Deppe's squirrel | ardilla costarricense (Sciurus deppei) |
| Ebian's palm squirrel | ardilla de las palmeras (Epixerus ebii) |
| long-eared flying squirrel | ardilla voladora enana (Idiurus macrotis) |
| red-backed squirrel monkey or Central American squirrel monkey | saimiri dorsirrojo (Saimiri oerstedii) |